An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that reassembles fragmented packets fails to properly validate the total length of an incoming packet specified in its IP header, as well as the fragmentation offset value specified in the IP header. By crafting a packet with specific values of the IP header length and the fragmentation offset, attackers can write into the .bss section of the program (past the statically allocated buffer that is used for storing the fragmented data) and cause a denial of service in uip_reass() in uip.c, or possibly execute arbitrary code on some target architectures.

According to the version of the open-iscsi package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - An issue was discovered in uIP 1.0, as used in Contiki     3.0 and other products. The code that reassembles     fragmented packets fails to properly validate the total     length of an incoming packet specified in its IP     header, as well as the fragmentation offset value     specified in the IP header. By crafting a packet with     specific values of the IP header length and the     fragmentation offset, attackers can write into the .bss     section of the program (past the statically allocated     buffer that is used for storing the fragmented data)     and cause a denial of service in uip_reass() in uip.c,     or possibly execute arbitrary code on some target     architectures.(CVE-2020-17438)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the version of the open-iscsi package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability :

  - An issue was discovered in uIP 1.0, as used in Contiki     3.0 and other products. The code that reassembles     fragmented packets fails to properly validate the total     length of an incoming packet specified in its IP     header, as well as the fragmentation offset value     specified in the IP header. By crafting a packet with     specific values of the IP header length and the     fragmentation offset, attackers can write into the .bss     section of the program (past the statically allocated     buffer that is used for storing the fragmented data)     and cause a denial of service in uip_reass() in uip.c,     or possibly execute arbitrary code on some target     architectures.(CVE-2020-17438)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for open-iscsi fixes the following issues :

CVE-2020-17437: uIP Out-of-Bounds Write (bsc#1179908)

CVE-2020-17438: uIP Out-of-Bounds Write (bsc#1179908)

CVE-2020-13987: uIP Out-of-Bounds Read (bsc#1179908)

CVE-2020-13988: uIP Integer Overflow (bsc#1179908)

Enabled no-wait ('-W') iscsiadm option for iscsi login service (bsc#1173886, bsc#1183421)

Added the ability to perform async logins (bsc#1173886)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for open-iscsi fixes the following issues :

Fixes for CVE-2019-17437, CVE-2020-17438, CVE-2020-13987 and CVE-2020-13988 (bsc#1179908) :

check for TCP urgent pointer past end of frame

check for u8 overflow when processing TCP options

check for header length underflow during checksum calculation

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
150224	EulerOS 2.0 SP9 : open-iscsi (EulerOS-SA-2021-1932)	Nessus	Huawei Local Security Checks	critical
150209	EulerOS 2.0 SP9 : open-iscsi (EulerOS-SA-2021-1953)	Nessus	Huawei Local Security Checks	critical
148640	EulerOS Virtualization 2.9.0 : open-iscsi (EulerOS-SA-2021-1762)	Nessus	Huawei Local Security Checks	critical
148620	EulerOS Virtualization 2.9.1 : open-iscsi (EulerOS-SA-2021-1718)	Nessus	Huawei Local Security Checks	critical
148504	SUSE SLES15 Security Update : open-iscsi (SUSE-SU-2021:1164-1)	Nessus	SuSE Local Security Checks	critical
146944	SUSE SLES12 Security Update : open-iscsi (SUSE-SU-2021:0663-1)	Nessus	SuSE Local Security Checks	critical

Detections

Analytics

CVE-2020-17438

critical

Tenable Plugins

critical

critical

critical

critical

critical

critical